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Hello, This may not be of help to everyone but for North Americans it would be handy to know. FAR circuits www.farcircuits.net They have the the BIT-X board as drawn by the creator. The one I

Hi! Friends Unfortunately we have still not managed to get the BITX PCB commercialy manufactured even though it is quite cheap getting it done here. Secondly postage from India is also rather

Hi Arv, and Group, I've been looking at the CCA Version 3 by VU3WJM as it fits the 884 packset like a glove. I have to find someone who has that board available or else gear up to make my own. I've

Jim VE3DDY One of my BITX units is built on a 7 inch by 4 inch PCB, including the PTO/VFO, a Huff & Puff stabilizer, and three additional transistors for T/R power switching. It is a bit tight, but

Hi BIT-X'ers, My name is Jim and I'm new to the group. I'm a Canadian Radio Amateur and an avid experimenter. I have an old Chinese type 884 VHF radio packset into which I'd like to install a Bit-X

Hello, I have also done transverter for 2M in the past as well as 2m RX designs. A good filter for 2m can be done with 3 coils of helix design using aperture (window) coupling. Constuction is a 3

Hello, Harmonics resulting from mixer operation are not a problem if circuits are run linear with attention to correct signal levels. Attention to filtering is a requirement and at 2M leads must be

wrote: filter different Good... good question. ;-) The Yaesu FT-290R have 4 passaband filters sintonized at 144MHz with the aid of varicaps as output of mixer (it has also a ring diodes mixer), it

Hi Great to read about your BITX developments! I have one concern, though: will it be possibile to efficiently filter out unwanted harmonics +-n*10MHz at 144 MHz? I think VHF&up transceivers use

Greetings to fellows BITX'ers. The other day I was testing a VCO for the range of 144MHz with the interest of making work the BITX in 2m. The VCO oscillates from 125 to 145MHz approximately with a

http://www.hfprojects.com/projects/hfpacker/HFPackerAmp.pdf

Dear Manuel: I want to be grateful to you for your courtesy in giving me the information for the construction of the VFO and second for the advices towards the group. In the weekend I will be

I'm Sorry Carlos, but the group's language is English. You may prioritary to post in english. The mayority of others members only understand english. Good, You must compose the message in

ESTIMADO MANUEL: AL FINALIZAR CON EXITO LA CONSTRUCCION DEL BITX ME ENCONTRE CON LA DIFICULTAD DE HALLAR UN CIRCUITO VFO QUE SEA ESTABLE A ALTA FRECUENCIA. INICIALMENTE EL XCVER LO AJUSTE EN LA BANDA

http://www.qsl.net/dl5swb/minirk_e.htm The easy way to calculate toroid cores. mini Ringkern-Rechner V. 1.0 was first published in German Amateur Radio Magazin "FUNKAMATEUR" 11/2000. The program

Hello All..... Anyone dealing with spare bitx pcbs do elet me know via mail your adress.I've tried contacting vu2pep but i got no replies......... pls contact me at: ragav_rocks@...

Hi Arv, please see message 309 ;-) Recently low activity on 18 MHz, most of the time nothing to hear because of bad propagation (or bad antenna?):-( Most (far) stations I worked are from Bulgarien,

EA7ARX Congratulations on your license upgrade, and on the recent DX with the BITX15/20 transceiver. I wonder what the distance per watt record might be for a BITX design? Is your 500 Km per watt

Concratulations with you extended licence and the experience of working on HF with the BITX. May be we will meet, Chris. PA3CRX

Hello, Turning the moddulator around should not negatively impact operation. My proto(20M) and testing the second (6m) show the revised is prefered for many reasons. The high noise suggests